570 SEEKICOKNIA. 



thorax is not much dilated at the sides anteriorly, and clothed with short decumbent 

 fulvous hairs ; the elytra are very elongate and parallel, shallowly sulcate, with the 

 interstices narrowly costate, and rather coarsely punctured ; the antennae are moderately 

 long, with the fourth and following joints almost parallel ; the mandibles are short ; 

 the maxillary palpi are slender, with the apical two joints equal in length ; and the 

 eyes are large and prominent. We figure a male from Orizaba. 



23. Scaptolenus rubriventris. (Tab. XXV. figg. 19, 2; 20, 6 .) 



<J . Scaptolenus rubriventris, Chevr. Ann. Soc. Ent. Fr. 1874, pp. 509, 520 l . 



§ . Oboval, robust, convex, bright rufo-castaneous, very shining, almost glabrous above, paler and sparsely 

 pubescent beneath ; legs reddish, the femora paler. Head rather convex in front, the anterior portion 

 very coarsely and confluently punctured, for the rest sparsely, coarsely punctate ; mandibles broadly 

 flattened in their basal half, abruptly curved inwards from the middle. Protborax strongly transverse, 

 with the sides rounded anteriorly and constricted behind, the base and apex deeply bisinuate, and the 

 basal median lobe broadly rounded ; the hind angles acute and divergent, moderately produced ; the lateral 

 margins crenulate ; the disc obsoletely canaliculate and deeply transversely depressed a little before the 

 middle, and with a very deep oblique fovea on either side about the centre ; the surface sparsely, coarsely, 

 irregularly punctate, the punctuation becoming more crowded towards the sides, base, and apex. 

 Scutellum transverse, rounded behind, coarsely, rugosely punctate. Elytra nearly three times the length 

 of the prothorax, and a little wider than it at the base, widening to beyond the middle, dehiscent from 

 about the basal third ; obsoletely striate, and sparsely, irregularly, moderately coarsely punctate. Dorsal 

 segments of the abdomen coarsely, thickly punctate, the ventral segments with widely scattered coarse 

 punctures. Wings about four-fifths the length of the elytra. 

 Length (to apex of the elytra) 16, breadth 7| millim. 



Hab. Costa Riga {Salle l , Van Patten) ; Panama, Volcan de Chiriqui (Champion), 

 Chiriqui (coll. Oberthiir). 



Of this species we have a considerable series of males from Costa Rica and Chiriqui ; 

 and a single female from Costa Rica, received with several males from Van Patten, no 

 doubt belongs to the same species. S. rubriventris, the type of which is before me, 

 is very closely allied to (and perhaps a varietal form of) S. femoralis, but differs 

 from it in the infuscate femora and slightly darker breast. It varies greatly in size 

 and colour. The female may be known from the corresponding sex of 8. guerini 

 and S. chevrolati by the broadly rounded basal median lobe of the thorax and the 

 transverse scutellum. The male is described as having four fovea? near the anterior 

 margin of the thorax, but they are invisible to me in the type. We figure the female 

 and the type of the male, both from Costa Rica. 



24. Scaptolenus guerini. (Tab. XXV. fig. 21, <s .) 



$ . Scaptolenus chevrolati, Chevr. Ann. Soc. Ent. Fr. 1874, pp. 509, 518, t. 1. fig. 4 ( ? ) 1 (nee 

 G uerin) . 



Eab. Mexico (coll. Oberthiir), Orizaba (Salle x ). 



Six specimens of this species, for which a new name is required, have been 



